bug#66288: 29.1; Performance regression using pipe for subprocess

[Dmitry Gutov]

On 02/10/2023 22:40, Gerd Möllmann wrote:
> Dmitry Gutov<dmitry@gutov.dev>  writes:
>
> > On 02/10/2023 22:12, Gerd Möllmann wrote:
> > > Chris Hanson<cph@chris-hanson.org>   writes:
> > > FWIW, I can't reproduce the slowdown on macOS.  I get the
> > >
> > > > ;process time: 0 (0 RUN + 0 GC); real time: 1
> > > on the emacs-29 branch with emacs-29.1 and HEAD (same on master).
> > Curious: I reproduced it once (master, an older session), but then not
> > anymore, all subsequent attempts look fine/instant.
> >
> > That's with MIT Scheme 11.2, though (the output is a little different,
> > chiefly the list of bindings at the top).
> I've been using 12.1.  Was that macOS?

Linux, of course (it's visible in my User-Agent header, too).